Mele, who can play at scrum-half or fly-half and has a useful goal-kicking record, has arrived at Oval Park after a summer switch from Perpignan and is now counting down to the start of the season.
He is also looking forward to working with fellow half-backs including Ben Youngs, at his new club.
“It’s a pleasure for me to join Tigers,” he said.
“It’s a chance to play with players here and to have Richard Cockerill as coach. I will try to do my best to play well for Leicester Tigers.
“I know there is competition for places. I need that. Here you have to work every day to prove something. And to prove you can be better than the other player.
“That’s good for me. I hope I will be a better player here.”
The 27-year-old says former Tigers prop Perry Freshwater helped him make the decision to move to Welford Road.
Scrum-half Mele was a Perpignan team-mate of Freshwater who had good things to say about the club.
“I visited Leicester and I knew my story with Perpignan was going to finish so it was an opportunity for me to progress and to know there was somewhere to play rugby,” said Mele.
“Perry Freshwater told me about the club and the team, about the people who live in Leicester. He told me only good things about it.”